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ext4: change structure fields to __le/__be types
Change all the types of ext2/4 fields to little endian types and all the JBD fields to big endian types. Now we can use sparse (make C=1) to check for statements where we need byteswaps. Signed-off-by: Michael Walle <michael@walle.cc>
This commit is contained in:
Michael Walle
Tom Rini
@@ -66,92 +66,92 @@
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/* The ext2 superblock. */
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struct ext2_sblock {
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uint32_t total_inodes;
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uint32_t total_blocks;
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uint32_t reserved_blocks;
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uint32_t free_blocks;
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uint32_t free_inodes;
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uint32_t first_data_block;
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uint32_t log2_block_size;
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uint32_t log2_fragment_size;
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uint32_t blocks_per_group;
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uint32_t fragments_per_group;
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uint32_t inodes_per_group;
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uint32_t mtime;
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uint32_t utime;
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uint16_t mnt_count;
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uint16_t max_mnt_count;
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uint16_t magic;
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uint16_t fs_state;
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uint16_t error_handling;
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uint16_t minor_revision_level;
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uint32_t lastcheck;
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uint32_t checkinterval;
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uint32_t creator_os;
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uint32_t revision_level;
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uint16_t uid_reserved;
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uint16_t gid_reserved;
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uint32_t first_inode;
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uint16_t inode_size;
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uint16_t block_group_number;
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uint32_t feature_compatibility;
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uint32_t feature_incompat;
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uint32_t feature_ro_compat;
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uint32_t unique_id[4];
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__le32 total_inodes;
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__le32 total_blocks;
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__le32 reserved_blocks;
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__le32 free_blocks;
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__le32 free_inodes;
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__le32 first_data_block;
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__le32 log2_block_size;
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__le32 log2_fragment_size;
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__le32 blocks_per_group;
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__le32 fragments_per_group;
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__le32 inodes_per_group;
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__le32 mtime;
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__le32 utime;
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__le16 mnt_count;
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__le16 max_mnt_count;
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__le16 magic;
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__le16 fs_state;
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__le16 error_handling;
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__le16 minor_revision_level;
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__le32 lastcheck;
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__le32 checkinterval;
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__le32 creator_os;
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__le32 revision_level;
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__le16 uid_reserved;
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__le16 gid_reserved;
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__le32 first_inode;
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__le16 inode_size;
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__le16 block_group_number;
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__le32 feature_compatibility;
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__le32 feature_incompat;
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__le32 feature_ro_compat;
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__le32 unique_id[4];
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char volume_name[16];
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char last_mounted_on[64];
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uint32_t compression_info;
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__le32 compression_info;
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};
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struct ext2_block_group {
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__u32 block_id; /* Blocks bitmap block */
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__u32 inode_id; /* Inodes bitmap block */
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__u32 inode_table_id; /* Inodes table block */
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__u16 free_blocks; /* Free blocks count */
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__u16 free_inodes; /* Free inodes count */
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__u16 used_dir_cnt; /* Directories count */
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__u16 bg_flags;
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__u32 bg_reserved[2];
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__u16 bg_itable_unused; /* Unused inodes count */
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__u16 bg_checksum; /* crc16(s_uuid+grouo_num+group_desc)*/
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__le32 block_id; /* Blocks bitmap block */
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__le32 inode_id; /* Inodes bitmap block */
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__le32 inode_table_id; /* Inodes table block */
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__le16 free_blocks; /* Free blocks count */
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__le16 free_inodes; /* Free inodes count */
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__le16 used_dir_cnt; /* Directories count */
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__le16 bg_flags;
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__le32 bg_reserved[2];
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__le16 bg_itable_unused; /* Unused inodes count */
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__le16 bg_checksum; /* crc16(s_uuid+grouo_num+group_desc)*/
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};
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/* The ext2 inode. */
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struct ext2_inode {
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uint16_t mode;
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uint16_t uid;
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uint32_t size;
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uint32_t atime;
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uint32_t ctime;
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uint32_t mtime;
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uint32_t dtime;
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uint16_t gid;
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uint16_t nlinks;
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uint32_t blockcnt; /* Blocks of 512 bytes!! */
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uint32_t flags;
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uint32_t osd1;
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__le16 mode;
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__le16 uid;
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__le32 size;
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__le32 atime;
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__le32 ctime;
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__le32 mtime;
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__le32 dtime;
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__le16 gid;
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__le16 nlinks;
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__le32 blockcnt; /* Blocks of 512 bytes!! */
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__le32 flags;
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__le32 osd1;
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union {
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struct datablocks {
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uint32_t dir_blocks[INDIRECT_BLOCKS];
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uint32_t indir_block;
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uint32_t double_indir_block;
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uint32_t triple_indir_block;
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__le32 dir_blocks[INDIRECT_BLOCKS];
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__le32 indir_block;
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__le32 double_indir_block;
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__le32 triple_indir_block;
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} blocks;
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char symlink[60];
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} b;
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uint32_t version;
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uint32_t acl;
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uint32_t dir_acl;
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uint32_t fragment_addr;
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uint32_t osd2[3];
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__le32 version;
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__le32 acl;
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__le32 dir_acl;
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__le32 fragment_addr;
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__le32 osd2[3];
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};
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/* The header of an ext2 directory entry. */
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struct ext2_dirent {
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uint32_t inode;
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uint16_t direntlen;
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uint8_t namelen;
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uint8_t filetype;
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__le32 inode;
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__le16 direntlen;
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__u8 namelen;
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__u8 filetype;
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};
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struct ext2fs_node {
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